Many auxiliary loads require a transfer of heat from the hot water released by a boiler or other heat source to some other liquid operating at a lower temperature. Such situations require the use of a ____.
a. counterflow
b. heat exchanger
c. hydraulic interface
d. thermal plate
b. heat exchanger
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A typical metric fastener size is _____.
a. M8 × 1 b. 3.4M c. 10 UNC d. 10 LH
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The rotation of an ECM motor is determined by:
A) The polarity of the start winding. B) The module program. C) The polarity of the power into the motor. D) The internal motor wiring.
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Machining of a rotor is performed to ________
A) Remove deep scoring B) Remove hard spots C) Either A or B D) Neither A nor B
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The United States Congress passed the Clean Air Act in:
A) 2000. B) 1990. C) 1995. D) 1994.
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